Guan Yu, Sainted Warrior, Remembrance, Deathrender, and Phantom Train

Prerequisites

• Guan Yu, Sainted Warrior on the battlefield
• Remembrance on the battlefield
• Deathrender on the battlefield
• Phantom Train on the battlefield

Steps

1. Activate Phantom Train by sacrificing Guan Yu
2. When Guan Yu dies, it, Deathrender and Remembrance trigger
3. Resolve the Guan Yu trigger, causing you to shuffle it into your library from your graveyard
4. Resolve the Remembrance trigger, causing you to search your library for Guan Yu and put it into your hand
5. Resolve the Deathrender trigger, putting Guan Yu from your hand onto the battlefield, and attaching Deathrender to it
6. Resolve the Phantom Train ability Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on a creature